Fortinet FN-CABLE-QSFP56-DAC-LB5 QSFP56 Cable

FN-CABLE-QSFP56-DAC-LB5 Exact Order Identity

FN-CABLE-QSFP56-DAC-LB5 is a physical 2.5 m 200 GE QSFP56 direct-attach cable. It is not a FortiCare entitlement, subscription or software license.

Published link boundary

The exact order row identifies Confirm against the exact order line, a published reach or assembly length of 2.5 m, not 0.5 m, Integrated cable terminations connectivity and Cable assembly media. The stated operating range is Use within the supported platform environment.

Model-specific deployment decision

Route the 2.5-metre LB5 assembly through the intended vertical manager and rack crossing without chassis-door pressure. Validate QSFP56 mode and counters only after permanent dressing.

Cross-rack route release

The LB5 assembly must be accepted against its permanent 2.5-metre path, not while loosely connected. Identify every vertical and horizontal manager, reserve extraction clearance at each QSFP56 cage and photograph the final service loop. A route that closes the link but presses against a door, fan tray or neighbouring connector fails physical acceptance.

Post-dressing 200 GE proof

Capture link training, FEC mode, corrected and uncorrected counters before and after dressing. Apply representative bidirectional traffic, then repeat the counter sample after the cable has reached its normal installed temperature. Keep these results with the two endpoint serial numbers.

Receiving and traceability

Match the packaging label, full SKU and quantity to the purchase line before breaking the seal. Record serial or lot identifiers where present, the installed endpoint models, port numbers and final acceptance date. Pack boundary: One orderable unit unless the exact SKU states a pack.

Compatibility control

Confirm this exact order code in Fortinet's current transceiver and cable compatibility table for both endpoint models and software releases. A matching connector or form factor alone does not establish support, reach or breakout behavior.

Included and excluded scope

The terminations are included in the cable assembly. Switches, interface licenses, breakout configuration and unrelated patching are not included.

Official evidence

Fortinet Transceivers and Cables data sheet is the manufacturer source for the order identity and physical link facts. Preserve the accepted compatibility result with the project record.